MCDGV4 - GENERATOR DIFFERENTIAL PROTECTION


The “all-inclusive” generator differential protection relay MCDGV4 is a high precision protection for medium and high power generators. The step-up transformer can be integrated into the protection zone (unit protection/ block protection). In addition to the phase and earth differential protection, the device provides a variety of generator-specific protection functions


MCDGV4-2 highPROTEC Series

Part Number: MCDGV4-2A0AAA

Generator Differential Protection


Please contact us if you need more informations.
Variants Overview Table
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Terms and Conditions
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Features

  • Wide range power supply: 24 … 270 VDC / 48 … 230 VAC

  • VT measurement from 0 V up to 800 VAC (300 VAC for some order options)

  • CT measurement always with 1 A and 5 A

  • Plausibility verification intelligence

  • Optimized functional overview by hiding unused functions, parameter and assignments

  • On-board testing without removing the wiring

  • Menu Languages supported: English, German, Spanish, Portuguese, French, Russian, Polish, Romanian

Protection of electrical (HV, MV) synchronous generators against:

  • Thermal damage due to overload/short circuit

  • Inadvertent energization

  • Managing Overload by Load shedding by ROCOF, Underfrequency,…
    Severe Out of Step damages

  • Underexcitation damages

  • Stator Earth Fault / insulation damages

  • Rotor Earth fault detection

  • Insulation damage due to overvoltage

  • Insulation damage detection by differential current principle
    Overfluxing (Step-up-Transformer)

  • Reverse Power (indicating outage of the prime mover)
    Overfrequency, Underfrequency (over-/underspeed)

  • Vector surge protection against asynchrounous coming back of grid voltage after power outage (e.g. caused by auto reclosure)

Downloads

Specification

Name Open
DOK-FLY-MCDGV4-2D.pdf Open
DOK-FLY-MCDGV4-2E.pdf Open

Manual

Name Open
MCDGV4-3.7-DE-MAN_C.pdf Open
MCDGV4-3.7-EN-MAN_C.pdf Open

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